Based on a true story King of Devil's Island tells the unsettling tale of a group of young delinquents banished to the remote prison of Bastøy. Under the guise of rehabilitation the boys' daily regime is dictated by mental and physical abuse at the hands of their wardens. The arrival of new boys Erling (Helstad) and Ivar (Magnus Langlete) spark a chain of events that ultimately ignite rebellion. King of Devil's Island explores a sinister moment in Norwegian history that won't be forgotten.